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// Portions Copyright [2018-2021] Payara Foundation and/or affiliates

package org.glassfish.flashlight.impl;

import org.glassfish.flashlight.*;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.glassfish.flashlight.datatree.TreeNode;

import org.jvnet.hk2.annotations.Service;
import jakarta.inject.Singleton;

/**
 * @author Harpreet Singh
 */
@Service
@Singleton
public class MonitoringRuntimeDataRegistryImpl implements MonitoringRuntimeDataRegistry {
    
    
    protected Map<String, TreeNode> children = new ConcurrentHashMap<String, TreeNode>();


    public MonitoringRuntimeDataRegistryImpl (){      
    }
    
    @Override
    public void add(String name, TreeNode node) {
        if (name != null ) {
             children.put(name, node);
        } else {
            throw new RuntimeException ("MonitoringRuntimeDataRegistry does not take null keys");
        }
    }

    public void remove(String name) {
        if (name != null)
            children.remove(name);
    }

    @Override
    public TreeNode get (String name) {
        TreeNode node = (name != null)? children.get(name): null;
        return node;
    }
}
